Android倒计时的开始与停止剩余时分秒的展示

2019-12-12 00:05:17

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本文实例为大家分享了Android倒计时的开始与停止，剩余时分秒的展示效果，供大家参考，具体内容如下

1.声明开启倒计时相关方法

Handler handler = new Handler(); Runnable update_thread = new Runnable() {  @Override  public void run() {   leftTime--;   LogUtil.e("leftTime="+leftTime);   if (leftTime > 0) {    //倒计时效果展示    String formatLongToTimeStr = formatLongToTimeStr(leftTime);    sureBtn.setText(formatLongToTimeStr);    //每一秒执行一次    handler.postDelayed(this, 1000);   } else {//倒计时结束    //处理业务流程    //发送消息，结束倒计时    Message message = new Message();    message.what = 1;    handlerStop.sendMessage(message);   }  } };

2.声明停止倒计时的方法

final Handler handlerStop = new Handler() {  public void handleMessage(Message msg) {   switch (msg.what) {    case 1:     leftTime = 0;     handler.removeCallbacks(update_thread);     break;   }   super.handleMessage(msg);  } };

3.页面关闭时，销毁定时器，重写onDestory方法

@Override protected void onDestroy() {  super.onDestroy();  leftTime = 0;  handler.removeCallbacks(update_thread); }

4.开启倒计时

handler.postDelayed(update_thread, 1000);

5.倒计时展示剩余时分秒的两种方法

方法一展示剩余时、分、秒：

public String formatLongToTimeStr(Long l) {  int hour = 0;  int minute = 0;  int second = 0;  second = l.intValue() ;  if (second > 60) {   minute = second / 60; //取整   second = second % 60; //取余  }  if (minute > 60) {   hour = minute / 60;   minute = minute % 60;  }  String strtime = "剩余："+hour+"小时"+minute+"分"+second+"秒";  return strtime; }

方法二展示剩余天、时、分、秒：

public String formatLongToTimeStr(Long date) {  long day = date / (60 * 60 * 24);  long hour = (date / (60 * 60) - day * 24);  long min = ((date / 60) - day * 24 * 60 - hour * 60);  long s = (date - day*24*60*60 - hour*60*60 - min*60);  String strtime = "剩余："+day+"天"+hour+"小时"+min+"分"+s+"秒";  return strtime; }

6.最终效果图